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Finding the Fourth Proportional to 7,047,679.60, 9,845,493.80 and 7,047,679.60

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Solution

The fourth proportional to 7,047,679.60, 9,845,493.80 and 7,047,679.60 is: 9,845,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047,679.60 : 9,845,493.80 = 7,047,679.60 : x
  2. Step 2: Convert to fraction form
    7,047,679.60/9,845,493.80 = 7,047,679.60/x
  3. Step 3: Cross multiply
    7,047,679.60x = 9,845,493.80 × 7,047,679.60
  4. Step 4: Simplify right side
    7,047,679.60x = 69,387,885,806,186.48
  5. Step 5: Solve for x
    x = 69,387,885,806,186.48/7,047,679.60
  6. Step 6: Final answer
    x = 9,845,493.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.